12x Magnifying Glass Lenses

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  • A review of current technologies to visualise cataract
    The slit is opened wide and a ground glass screen or diffuser is incorporated in the illumination .... The angle of the slit illumination system lies between 30º-50º and magnification depends on the area under observation as it is 5x- 12x for different surveys and can be 30x or above for assessment of lachrymal film (Figure 11). .... This is generally used for observation of anterior eye segments, crystalline lens , cornea and lachrymal reflex.
  • A projection viewer and enlarger
    …little modification except for the provision of collimated illumination, a larger screen (usually 12x 15 in.) and .... “Xpres” f 1.9projection lens for magnifications of 50 or 25 diameters respectively. .... Glass graticules showing to the required magnification the shape of the part to be inspected are applied…
  • AN EXPERIMENTAL TECHNIQUE TO STUDY THE TRANSVERSE MECHANICAL BEHAVIOUR OF POLYMER MONOFILAMENTS
    The latter, is composed of a 1X or 2X adaptor, a 12X zoom lens (which has a 12X parfocal zoom lens system and can achieve very good optical clarity) and a 1.5X or 2X lens attachment. .... The choice depends on the type of the experiment and the amount of the magnification needed. .... dis- tance), in order to lighten the contact surface between the monofilament and the two glass plates.
  • Instrumentation for Airbreathing Propulsion > Holography of JP-4 Droplets and Combusting Boron Particles
    …the camera in position, a Schneider-Kreuznach f/5.6, 370-mm focal length lens was installed and … view camera was positioned until the image was in sharp focus on the ground- glass viewing screen. .... Focusing of the camera was aided by a 12X magnifying eye loop.
  • Aberrations And Focusability In Large Solid-State Laser Systems
    …beam characteristics for a low power (200 GW) pulse near the focus of the f/6 target lens . .... (These photographs were taken in planes equivalent to those shown in the sketch using an array camera3 with lateral magnification of 12X .). .... It is observed that Shiva, like Argus4 and other solid state glass lasers, operates at typically 1018…
  • Design of an imaging VISAR diagnostic for the National Ignition Facility (NIF)
    12X magnification . .... Figure 9 shows a close up of this six-element lens after converting the fictitious glasses into real glasses.
  • Imaging methods for infrared cathodoluminescence topography
    Insertion of M2 casts the image on to a glass screen E where the visible pattern can .... How- ever, to increase both brightness and total magnification , additional image intensification was used. .... 2 at a threefold magnification by L3, a Wray f l l copying lens of 51 mm … final magnification of the specimen S appearing on the screen of 13 is 12x 0.74 x…
  • Effects of predation and disturbance by ophiuroids on soft-bottom community structure in Oslofjord: results of a mesocosm study*
    …the top section was sieved on a 100 pm mesh and the bottom section on 250 p m The material retained on the sieves was stored in 70% isopropyl alcohol, sorted under a dissecting microscope at 12x magnification and organisms identified to .... Traps were glass vials (1.8 cm inside diameter X 3.2 cm deep) pushed into the .... Pictures were taken with a 35 mm single lens reflex camera (50 mm lens) mounted 70 cm…
  • Geometric Optics In Ophthalmic Lens Design
    …outlined the problem and shown the advantages of conoid surfaces for reading magni­ fiers and magnifying spectacles. .... designs are available in glass . .... American Optical and others supply aspheric plastic lenses . .... Lenses are supplied in powers ranging from 2X, (8.00 diopter) to 12X (48 diopters).
  • Using Image Analysis to Identify Acetylated Distarch Adipate in a Mixture
    …and a drop of glycerol, was placed on a micro- scopic glass and covered with cover glass . .... A macro- optic Navitar 12x was employed combined with an object lens with a magnification of 26in series.